VVT-I setup - Toyota Yaris Forums

Dadombomb15 · 04-09-2010, 11:31 PM

maybe on a VVTL-i, but VVT-i engines don't have this "spring" you're talking about. On the VVTL-i, the spring you're talking about connects the slipper follower to the rocker arm. When the rpm's are above the set lift point, oil pressure slides a pin under each rocker arm switching it to the higher lobe of the camshaft giving it more lift for lengthier periods of time

VVTL-I engines have that extra kick but most of the time it isn't seen until far after 3500 rpm. my dad had an '07 Lotus Exige S for a while with the VVTL-i engine and damn did it move. then again it has a supercharger and an intercooler.

ddongbap · 04-10-2010, 08:11 PM

Quote:

Originally Posted by Dadombomb15

maybe on a VVTL-i, but VVT-i engines don't have this "spring" you're talking about. On the VVTL-i, the spring you're talking about connects the slipper follower to the rocker arm. When the rpm's are above the set lift point, oil pressure slides a pin under each rocker arm switching it to the higher lobe of the camshaft giving it more lift for lengthier periods of time

VVTL-I engines have that extra kick but most of the time it isn't seen until far after 3500 rpm. my dad had an '07 Lotus Exige S for a while with the VVTL-i engine and damn did it move. then again it has a supercharger and an intercooler.

Don't forget the car weighs 1 ounce.

Dadombomb15 · 04-10-2010, 08:15 PM

Quote:

Originally Posted by ddongbap

Don't forget the car weighs 1 ounce.

this is true haha
fun as all hell to drive, greatly miss it

04-09-2010, 11:31 PM	#1
Dadombomb15 View User's Garage Drives: 1996 Miata Join Date: Sep 2007 Location: San Jose, CA Posts: 38	maybe on a VVTL-i, but VVT-i engines don't have this "spring" you're talking about. On the VVTL-i, the spring you're talking about connects the slipper follower to the rocker arm. When the rpm's are above the set lift point, oil pressure slides a pin under each rocker arm switching it to the higher lobe of the camshaft giving it more lift for lengthier periods of time VVTL-I engines have that extra kick but most of the time it isn't seen until far after 3500 rpm. my dad had an '07 Lotus Exige S for a while with the VVTL-i engine and damn did it move. then again it has a supercharger and an intercooler. __________________ 1996 Miata Exterior: Aftermarket rims (on car when I bought it), aftermarket glass-window soft-top (also on car when bought) Interior: Alpine H/U Performance: Corksport "Drift" Cat-Back Exhaust, Hard Dog Ace Double Diagonal Roll Bar Future (planned) mods: Intake, bumper turning light "induction" kit, better aftermarket wheels (lighter), light flywheel, upgraded clutch, racing seats, etc etc.

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